A novel 5'-upstream mutation in the factor XII gene is associated with a TaqI restriction site in an Alu repeat in factor XII-deficient patients
- PMID:8641707
- DOI: 10.1007/BF02346200
A novel 5'-upstream mutation in the factor XII gene is associated with a TaqI restriction site in an Alu repeat in factor XII-deficient patients
Abstract
The factor XII gene from factor XII-deficient patients was screened for mutations at the genomic level. In patients negative for cross-reacting material, a T to C transition 224 bp upstream of exon 3 was identified (exon 3-224 (T --> C)) that creates an additional TaqI restriction site in intron B. This mutation is located within a putative hormone responsive element and within a B box promoter of an Alu repeat of the Sb0 family. The TaqI site is associated with a G to C transversion upstream of the transcription initiation site (exon 1-8 (G --> C)). We discuss the possible roles of these elements in factor XII gene regulation.
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